Spring-hinge



(Model.)

- G. W. WARNER.

SPRING HINGE.

No. 304,380.v Patented sept. 42, 1884.

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IlNrrsn STATES? GEORGE IV. VARNE-R, OF FREEPORT, ILLINOIS.

SPRING-HINGE.

SPECIFICATION forming part of- LettersPaten't No. 304,380, datedSeptember 2, 1884.

Application filed January 12, lSEl. (Model.) l

To all; whom/z5 may concern..-

Be it known that I, GEORGE V. VARNER, residing at Freeport, in thecounty of Stephenson and State of Illinois, and a citizen of the UnitedStates, have invented certain new and useful Improvements in SpringHinges, of which the following is a full description, ret'- erence beinghad to the accompanying drawings, in which- Figure lis an endview; Fig.2, a face or plan View; Fig. 3, a side view with one of the leaves insection on the dotted lines of Fig. 2; Fig. 4t, a plan View with theleaves partly broken off and folded at about the line of the neutralaction of the spring; Fig. 5, an under or back View with Ythe leavesfolded; Figs. 6, 7, and S, details of the spring-holder; Figs. 9 and 10,views of the arbor or pin detached; Fig. l1, a plan view of one end ofthe leaf to which the holder is pivoted.

The object of this invention is to improve the construction andoperation of that class of spring-hinges in which the spring operates tohold the door, screen, or window-blind either closed or open; and itsnature consists in the several combinations of parts hereinafter setforth and claimed as new.

In the drawings, A B indicate the leaves; O, the pintles D, spring E,the springholder,- F, the center pin or arbor; a a', attached ends ofthe spring; b, loop or projection to which the spring end a is attached;c d, ends or disks of the spring-holder; cfg, head of the spring-pin;7L, spring-groove on the end d of the spring-holder; tj, lockingprojections on the spring-holder; k, openings i in the ends of thespring-holder for inserting the pin F; Z m, stops orfabutments on theleaves, which prevent them from turning too far backward; n,locking-pins.

The leaves A B are made open at their inner edges, as shown at Fig. 2,to permit the free action ofthe spring in its movements for ward andback, or inward and outward. They are connected by the pintles C, usingslots, as shown, or otherwise, as may be found most convenient. They areprovided with limitstops, Z m, to prevent them from closing backwardwhen not applied for use. The pintles C may project, or they may be evenor flush with the ends of the hinges. In this form I have a completehinge or butt open in the middle, as stated, and in this opening Iinsert the spring and its attachments, as shown. The spring is anordinary helical spring made of any suitable spring-wire, and the end ais attached to the loopo;` projection b of the leaf A. The spring-holderis made in the form shown in Fig. 7, and is usually cast in one piece.Its ends are disk-formed and provided with slots 7c, in which thespring-pin F is in.- serted; also,with projections ij. These disks areconnected together by a bar, E, which is attached to or in line ornearly in line with the projections 'i j. The end d is provided with acircumferential groove, 7L, around which one end of the spring passes,and the end a ot' the spring is attached to the connecting-bar E atthepoint fi in Fig. 7.

The arbor or pin F is provided at one end with a head, y, which head isprovided with a iiange or washer, e, having its inner side inclined atf, and against which the end of the spring fits. The spring at this enda is at.- tached to the leaf A.

In order to prevent the spring from rotating the holder,theleaf B isprovided with pins a, which engage with the notches or projections t' j,Figs. 6 and 8, so that when either or both of the leaves are moved thespring-holder maintains the same relation to the leaf B in all of itsmovements. These pins n are also pivots upon which the spring-holder canturn, so as to move outward when the hinge is folded and inward when itis opened, these being the only points of attachment between thespring-holder and the hinge proper. The attachment of the spring is suchthat no other fastening is required to keep it and its holder inposition when the end a is attached to the leaf A. The head g of the pinand the groove or projection hon the end d of the holder keep the springin position and in line when at rest and during its movements. By thisconstruction and arrangement I produce a very simple and cheapspring-hinge which is capable of acting alternately in eitherdirection-that is, to hold the door, screen, window-blind, or otherthing to which it may be attached either open or closed, whenever thepart to which it is attached moves to one side or the other of theneutral line of spring action, and by having the spring and itsconnections independent of the pintles and wholly disconnected therefromthe spring and its holder are free to move out or in in use. This devicewill be operative with only one pin n. In placing the spring in positionit is to be sufficiently compressed endwise to cause the ends to re mainin position on their supports.

I am aware that a double-acting springhingehas been heretoforeconstructed in which the spring was provided with a holder. I do not,therefore, broadly claim this feature; but by my construction its formis greatly simpliiied, its action improved, and a cheaper hingeY isproduced with a materially less number of parts than those heretoforeused for this purpose.

What I claim as new, and desire to secure by Letters Patent, is asfollows:

1. The spring-hinge composed of the leaves A B, single spring-holder E,made in one piece, spring l), and piu F, substantially as and for nthepurpose speciied.

2. In a spring-hinge having two leaves, the

combination of the spring D, directly connected to a leaf at the end a,and connected at the opposite end to the holder E, with said holder andone or more pins, n, on the opposite leaf, substantially as described.

3. The combination of the two leaves hinged together and one providedwith a pin, n, the springholder consisting of two disks slotted andconnected together by a bar provided with a hook engaging With the pin nof the leaf, the arbor F resting in the slots of the disk, and thespring D encircling said arbor and connected at one end to one leaf andat the opposite end to the spring-holder, substantially as described.

4. The pin or arbor F, having the langed head g, in combination with theholder E, having the groove or projection h for keeping 1 the spring inplace and in line, substantially as specified.

GEORGE W. WARNER. Ti tu esses:

F. H. ADLEMAN, LEONARD SToRKoFF.

